151515061615 has 16 divisors (see below), whose sum is σ = 182067703488. Its totient is φ = 121045752576.

The previous prime is 151515061583. The next prime is 151515061637. The reversal of 151515061615 is 516160515151.

It is a cyclic number.

It is not a de Polignac number, because 151515061615 - 2⁵ = 151515061583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12457117 + ... + 12469273.

It is an arithmetic number, because the mean of its divisors is an integer number (11379231468).

Almost surely, 2^151515061615 is an apocalyptic number.

151515061615 is a deficient number, since it is larger than the sum of its proper divisors (30552641873).

151515061615 is a wasteful number, since it uses less digits than its factorization.

151515061615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15378.

The product of its (nonzero) digits is 22500, while the sum is 37.

Adding to 151515061615 its reverse (516160515151), we get a palindrome (667675576766).

The spelling of 151515061615 in words is "one hundred fifty-one billion, five hundred fifteen million, sixty-one thousand, six hundred fifteen".